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Strunz 9 Classification

9 Silikate (Germanate)

9.A Inselsilikate (Nesosilikate)

9.AJ Insel(Neso)silikate mit BO3 Triangeln und /oder B[4], Be[4] Tetraedern, eckenteilend mit SiO4

9.AJ.05 Grandidierit-Gruppe
Grandidierite (Mg,Fe2+)Al3(BO4)(SiO4)O orthorhombisch Pbnm mmm
Ominelite (Fe2+,Mg)Al3[O|BO4|SiO4] orthorhombisch Pbnm mmm

9.AJ.10 Dumortierit-Gruppe
Dumortierite AlAl6BSi3O18 orthorhombisch Pmcn mmm
Holtite (Ta0.6☐0.4)Al6BSi3O18 orthorhombisch Pnma mmm
Magnesiodumortierite MgAl6BSi3O17(OH) orthorhombisch Pmcn mmm
Nioboholtite (Nb0.6☐0.4)Al6BSi3O18 orthorhombisch Pnma mmm
Titanoholtite (Ti0.75☐0.25)Al6BSi3O18 orthorhombisch Pnma mmm

9.AJ.15 Garrelsit-Gruppe
Garrelsite Ba3NaSi2B7O16(OH)4 monoklin C2/c 2/m

9.AJ.20 Datolith-Gruppe
Bakerite Ca4B4(BO4)(SiO4)3(OH)3·H2O monoklin P21/c 2/m
Calcybeborosilite-(Y) (Y,REE,Ca)2(B,Be)2(SiO4)2(OH,O)2 monoklin P21/a 2/m
Datolite CaBSiO4(OH) monoklin P21/c 2/m
Gadolinite-(Ce) Ce2Fe2+Be2O2(SiO4)2 monoklin P21/c 2/m
Gadolinite-(Y) Y2Fe2+Be2O2(SiO4)2 monoklin P21/a 2/m
Hingganite-(Ce) CeBe(SiO4)(OH) monoklin P21/a 2/m
Hingganite-(Y) (Y,Yb,Er)BeSiO4(OH) monoklin P21/c 2/m
Hingganite-(Yb) (Yb,Y)BeSiO4(OH) monoklin P21/a 2/m
Homilite Ca2(Fe2+,Mg)B2Si2O10 monoklin P21/a 2/m
Melanocerite-(Ce) (Ce,Ca)5(SiO4,BO4)3(OH,O) amorph
Minasgeraisite-(Y) CaBi(Y,Er)2Mn<0,5(Be,B,Si)4[(OH,O) SiO4]4 triklin P1 1
Gadolinite-(Nd) Nd2Fe2+Be2O2(SiO4)2 monoklin P21/c 2/m
Hingganite-(Nd) Nd2☐Be2Si2O8(OH)2 monoklin P21/c 2/m

9.AJ.25

Stillwellite-(Ce) (Ce,La,Ca)BSiO5 trigonal P31 3

9.AJ.30

Cappelenite-(Y) Ba(Y,Ce)6Si3B6O24F2 trigonal P3 3

9.AJ.35 Vicanit-Gruppe
Okanoganite-(Y) (Na,Ca)3(Y,Ce)12Si6B2O27F14 trigonal R3m 3m
Vicanite-(Ce) Na0.5(Ce,Ca,Th)15Fe3+[F9|(As3+O3)0.5|As5+O4|BO3|Si3B3O18|SiO4)3] trigonal R3m 3m
Hundholmenite-(Y) (Y,REE,Ca,Na)15(Al,Fe3+)CaxAs3+1-x(Si,As5+)Si6B3(O,F)48 trigonal R3m 3m
Proshchenkoite-(Y) (Y,REE,Ca,Na,Mn)15Fe2+Ca(P,Si)Si6B3(O,F)48 trigonal R3m 3m
Vicanite group
Laptevite-(Ce) NaFe2+(REE7Ca5Y3)(SiO4)4(Si3B2PO18)(BO3)F11 trigonal R3m 3m
Arrheniusite-(Ce) CaMg[(Ce7Y3)Ca5](SiO4)4(Si2B3AsO18)(BO3)F11 trigonal R3m 3m

9.AJ.40

Jadarite LiNaB3SiO7(OH)



Mineralsystematik-Übersicht